public void Test_containsHot_WithoutHot()
        {
            string[] testBill = new string[] { "Cola", "Cheese Sandwich" };
            bool     result   = BillCalculator.containsHotFood(testBill);

            Assert.IsFalse(result);
        }
        public void Test_containsHot_WithHotFood()
        {
            string[] testBill = new string[] { "Cola", "Coffee", "Steak Sandwich" };
            bool     result   = BillCalculator.containsHotFood(testBill);

            Assert.IsTrue(result);
        }